function commerce_cart_handler_field_edit_attributes::views_form in Commerce Core 7

Returns the form which replaces the placeholder from render().

File

modules/cart/includes/views/handlers/commerce_cart_handler_field_edit_attributes.inc, line 33

Field handler to render attribute widgets to select a different product for the line item.

Class

commerce_cart_handler_field_edit_attributes

@file Field handler to render attribute widgets to select a different product for the line item.

Code

function views_form(&$form, &$form_state) {

  // The view is empty, abort.
  if (empty($this->view->result)) {
    return;
  }
  $form[$this->options['id']] = array(
    '#tree' => TRUE,
  );

  // At this point, the query has already been run, so we can access the
  // results in order to get the base key value (for example, nid for nodes).
  foreach ($this->view->result as $row_id => $row) {

    // Load the line item and generate a form ID based on its context data.
    $line_item = commerce_line_item_load($this
      ->get_value($row, 'line_item_id'));
    $product_ids = commerce_cart_add_to_cart_form_product_ids($line_item);
    $form_id = commerce_cart_add_to_cart_form_id($product_ids);

    // Ensure the current line item is a product line item.
    if (!in_array($line_item->type, commerce_product_line_item_types())) {
      continue;
    }

    // Fetch the Add to Cart form and put the attributes section into this
    // field's part of the form if it exists.
    $subform_state = $form_state;
    $subform_state['build_info'] = array(
      'form_id' => $form_id,
      'base_form_id' => 'commerce_cart_add_to_cart_form',
      'args' => array(
        $line_item,
      ),
    );

    // If the form has been submitted, copy the attributes values from the
    // edit_attributes sub-array to the top level of the submitted values
    // array so the selected product can be properly matched when the Add to
    // Cart form builds itself.
    if (!empty($form_state['values']['edit_attributes'][$row_id])) {
      $subform_state['values'] += $form_state['values']['edit_attributes'][$row_id];
    }
    $subform = array();
    $subform = commerce_cart_add_to_cart_form($subform, $subform_state, $line_item);

    // If an Ajax refresh resulted in an updated product ID, update the line
    // item accordingly and rebuild the subform. Note that for line items
    // that group products such that a product select list is required, we
    // have to fetch the current product ID differently than if it is stored
    // in a hidden form field.
    $line_item_wrapper = entity_metadata_wrapper('commerce_line_item', $line_item);
    if (!empty($subform['product_id'])) {
      $product_id = NULL;
      if (in_array($subform['product_id']['#type'], array(
        'hidden',
        'value',
      ))) {
        $product_id = $subform['product_id']['#value'];
      }
      else {
        $product_id = $subform['product_id']['#default_value'];
      }
      if (isset($product_id) && $product_id != $line_item_wrapper->commerce_product
        ->raw()) {
        $line_item_wrapper->commerce_product = $product_id;
        commerce_line_item_save($line_item);
        commerce_cart_order_refresh($line_item->order_id);

        // Rebuild the subform array.
        $subform_state = $form_state;
        $subform_state['build_info'] = array(
          'form_id' => $form_id,
          'base_form_id' => 'commerce_cart_add_to_cart_form',
          'args' => array(
            $line_item,
          ),
        );
        $subform = array();
        $subform = commerce_cart_add_to_cart_form($subform, $subform_state, $line_item);
      }
    }

    // Initialize the element representing the attribute fields in the form.
    $form[$this->options['id']][$row_id] = array();
    $element =& $form[$this->options['id']][$row_id];
    $element['#line_item'] = $line_item->line_item_id;
    foreach (array(
      'attributes',
      'unchanged_attributes',
      'product_id',
    ) as $name) {
      if (!empty($subform[$name])) {
        $element[$name] = $subform[$name];
        if (!empty($element[$name]['#ajax']['callback'])) {
          $element[$name]['#ajax']['callback'] = 'commerce_cart_add_to_cart_views_form_refresh';
        }
        foreach (element_children($element[$name]) as $key) {
          if (!empty($element[$name][$key]['#ajax']['callback'])) {
            $element[$name][$key]['#ajax']['callback'] = 'commerce_cart_add_to_cart_views_form_refresh';
          }
        }
      }
    }
  }
}